安全工程师考试《案例分析》练习及答案
环氧乙烷计量槽爆炸事故
事故经过:
由于爆炸造成大量环氧乙烷泄漏燃烧,使距该贮槽仪
1.试根据上述资料分析这起事故的直接原因和间接原因;
2.提出防止同类事故措施建议。
答案:
1.事故原因
(1)直接原因
1)环氧乙烷l号计量槽,属非法自制容器,制造质量低劣,焊缝、钢板存在着严重不允许缺陷,埋下发生事故的祸根,是造成此次事故的主要原因。
2)生产车间,属于四类易燃易爆生产作业场所,没有按规范设计、安装防静电接地装置,环氧乙烷泄漏汽化后,集聚电荷无法排除,酿成事故。
3)装有环氧乙烷的液化气槽车,没有及时脱离事故现场,导致事故扩大。
4)渭南饲料添加剂厂,对本厂的压力容器、压力管道的安全管理,没有执行国家的有关法律、法规、标准,非法设计、制造、使用,造成各个安全环节严重失控。
(2)间接原因
1)渭南饲料添加剂厂,擅自在技改项目中增添氯化胆碱合成车间,对安全生产的重要性认识不够,对环氧乙烷的危险性认识不足,安全管理机构、规章制度、操作规程不健全。对有关职能部门检查提出的问题置若罔闻,没有落实整改。整体设计布局不合理,贮罐与贮罐之间,贮罐与生产厂房之间及周围建筑物之间,安全距离均不符合有关规定,导致连锁反应。
2)人员培训教育不到位,特种作业人员没有经过法定部门培训考核,无证上岗作业,安全意识淡薄。厂内安全管理无专职人员,责任没有落实。
3)渭南市临渭区招商区管委会在建设项目中,没有认真履行职责,部门i管和经办人未尽职尽责,使生产储存化学危险品的工厂处于市区、居民区中,管委会领导亦未严格把关,使此次事故的损失进一步扩大。
4)渭南市临渭区计划局作为项目主管单位,没有严格遵照国家关于技术改造项目的有关规定,对渭南饲料添加剂厂饲料添加剂扩建项目进行严格管理,监督不力,没有及时对项目进行全面竣工验收,使可能发生事故的不安全因素没有及时发现。
5)政府有关部门,对民营企业疏于管理,在各自的职责范围内,监督检查不力,对查出问题的落实整改,没有跟踪管理到位。
2.为了有效杜绝类似事故的再次发生,必须采取有力的防范措施:
(1)这次事故的发生,主要是该厂的建设项目未按国家和省的有关规定进行规划、审批、管理和验收,工厂压力容器、压力管道等设备未进行安装验收、登记、检验、发证。临渭区计划和劳动行政部门,要进一步加大工作力度,要对本辖区的技术改造项目和所有锅炉压力容器进行一次全面的清理检查;公安消防、城建规划部门、招商区等单位要切实负起责任,严把基本建设项目审批与规划。
(2)渭南饲料添加剂厂在恢复生产之前应按照有关规定进行“三同时”审查验收,补办手续。
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